If you are receiving a 'Save as...' prompt when you try to print or if your print job is going to a different printer than you want when clicking the print icon, you most likely need to specify the default printer. Before starting close all open windows. This is necessary for all changes to take effect.
The default printer setting is a per-user, per-computer setting. This means that each user of a machine will have to specify their default printer and each user will have to specify it on each machine that they may print from.
This setting is specified under the Control Panel. Open the Start Menu -> Devices and Printers
Right-click on the printer that you want to be your default printer and single left-click on 'Set as Default Printer.'
The default printer will be indicated by a green circle and check mark below the printer.